Torneo Federal B was one of two leagues that form the fourth level of the Argentine football league system, made up of 100+ teams playing within eight regional zones across Argentina.
The other league at level four wasand still isthe Primera C Metropolitana, which is a competition for the numerous clubs in the city of Buenos Aires and the Greater Buenos Aires metropolitan area.
The Torneo Federal B was replaced with the similar Torneo Regional Federal Amateur for the 2019 season), while the Primera C continued on as its tier four companion for the Buenos Aires area.